Matching (9) Match items in column A to column B

Column a Column b
1.
A.
Convection
2.
B.
Mantle
3.
C.
Dense
4.
D.
Crust
5.
E.
Outer Core
6.
F.
Core
7.
G.
Asthenosphere
8.
H.
Inner Core
9.
I.
Lithosphere